scholarly journals Assessment of Wind and Solar Hybrid Energy for Agricultural Applications in Sudan

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 5
Author(s):  
Zafar A. Khan ◽  
Muhammad Imran ◽  
Abdullah Altamimi ◽  
Ogheneruona E. Diemuodeke ◽  
Amged Osman Abdelatif
Keyword(s):  
Renewable Energy ◽  
Case Studies ◽  
Irrigation Water ◽  
Energy Systems ◽  
Water Requirement ◽  
Small Scale ◽  
Hybrid Energy ◽  
Water Pumping ◽  
Hybrid Renewable Energy System ◽  
Hybrid Renewable Energy

In addition to zero-carbon generation, the plummeting cost of renewable energy sources (RES) is enabling the increased use of distributed-generation sources. Although the RES appear to be a cheaper source of energy, without the appropriate design of the RES with a true understanding of the nature of the load, they can be an unreliable and expensive source of energy. Limited research has been aimed at designing small-scale hybrid energy systems for irrigation pumping systems, and these studies did not quantify the water requirement, or in turn the energy required to supply the irrigation water. This paper provides a comprehensive feasibility analysis of an off-grid hybrid renewable energy system for the design of a water-pumping system for irrigation applications in Sudan. A systematic and holistic framework combined with a techno-economic optimization analysis for the planning and design of hybrid renewable energy systems for small-scale irrigation water-pumping systems is presented. Different hybridization cases of solar photovoltaic, wind turbine and battery storage at 12 different sites in Sudan are simulated, evaluated, and compared, considering the crop water requirement for different crops, the borehole depth, and the stochasticity of renewable energy resources. Soil, weather, and climatic data from 12 different sites in Sudan were used for the case studies, with the key aim to find the most robust and reliable solution with the lowest system cost. The results of the case studies suggest that the selection of the system is highly dependent on the cost, the volatility of the wind speed, solar radiation, and the size of the system; at present, hybridization is not the primary option at most of sites, with the exception of two. However, with the reduction in price of wind technology, the possibility of hybrid generation will rise.

scholarly journals Notes on the Economics of Residential Hybrid Energy System

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2639
Author(s):  
Mahelet G. Fikru ◽  
Gregory Gelles ◽  
Ana-Maria Ichim ◽  
Joseph D. Smith
Keyword(s):  
Renewable Energy ◽  
Energy Systems ◽  
Energy System ◽  
Economic Feasibility ◽  
Energy Output ◽  
Small Scale ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Residential Sector ◽  
Hybrid Renewable Energy

Despite advances in small-scale hybrid renewable energy technologies, there are limited economic frameworks that model the different decisions made by a residential hybrid system owner. We present a comprehensive review of studies that examine the techno-economic feasibility of small-scale hybrid energy systems, and we find that the most common approach is to compare the annualized life-time costs to the expected energy output and choose the system with the lowest cost per output. While practical, this type of benefit–cost analysis misses out on other production and consumption decisions that are simultaneously made when adopting a hybrid energy system. In this paper, we propose a broader and more robust theoretical framework—based on production and utility theory—to illustrate how the production of renewable energy from multiple sources affects energy efficiency, energy services, and energy consumption choices in the residential sector. Finally, we discuss how the model can be applied to guide a hybrid-prosumer’s decision-making in the US residential sector. Examining hybrid renewable energy systems within a solid economic framework makes the study of hybrid energy more accessible to economists, facilitating interdisciplinary collaborations.

scholarly journals IoT-Based Hybrid Renewable Energy System for Smart Campus

2021 ◽  
Vol 13 (15) ◽  
pp. 8555
Author(s):  
Ali M. Eltamaly ◽  
Majed A. Alotaibi ◽  
Abdulrahman I. Alolah ◽  
Mohamed A. Ahmed
Keyword(s):  
Renewable Energy ◽  
Energy Systems ◽  
Photovoltaic System ◽  
Critical Parameters ◽  
Small Scale ◽  
Accurate Information ◽  
Communication Model ◽  
Renewable Energy Systems ◽  
Hybrid Renewable Energy System ◽  
Hybrid Renewable Energy

There is a growing interest in increasing the penetration rate of renewable energy systems due to the drawbacks associated with the use of fossil fuels. However, the grid integration of renewable energy systems represents many challenging tasks for system operation, stability, reliability, and power quality. Small hybrid renewable energy systems (HRES) are small-scale power systems consisting of energy sources and storage units to manage and optimize energy production and consumption. Appropriate real-time monitoring of HRES plays an essential role in providing accurate information to enable the system operator to evaluate the overall performance and identify any abnormal conditions. This work proposes an internet of things (IoT) based architecture for HRES, consisting of a wind turbine, a photovoltaic system, a battery storage system, and a diesel generator. The proposed architecture is divided into four layers: namely power, data acquisition, communication network, and application layers. Due to various communication technologies and the missing of a standard communication model for HRES, this work, also, defines communication models for HRES based on the IEC 61850 standard. The monitoring parameters are classified into different categories, including electrical, status, and environmental information. The network modeling and simulation of a university campus is considered as a case study, and critical parameters, such as network topology, link capacity, and latency, are investigated and discussed.

scholarly journals A Review – Renewable energy based micro-cogeneration and hybrid energy systems

2021 ◽  
Vol 294 ◽  
pp. 01004
Author(s):  
Sonja Kallio ◽  
Monica Siroux
Keyword(s):  
Renewable Energy ◽  
High Efficiency ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy System ◽  
Primary Energy ◽  
Hybrid Energy ◽  
Hybrid Renewable Energy System ◽  
Hybrid Energy Systems ◽  
Hybrid Renewable Energy

To reduce carbon and greenhouse gas emissions, the more efficient and environmentally friendly energy production in the building sector is required. The deployment of renewable energy based microcogeneration units in the decentralized hybrid energy systems is a part of the solution. The micro combined heat and power (micro-CHP), or co-generation, units produce simultaneously heat and electricity from a single fuel source at high efficiency and close to the consumption point. These units offer significant benefits: reduced primary energy consumption, reduced CO2 emissions, and avoidance of distribution losses due to central plant and network construction. The objective of this paper is to present a review of available renewable energy based micro-CHP systems and to focus on the biomass and solar based conversion devices. Finally, a novel hybrid renewable energy system is presented by coupling renewable energy sources, such as solar and biomass for micro-CHP.

scholarly journals Dynamic Stability Enhancement of a Hybrid Renewable Energy System in Stand-Alone Applications

Computation ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 14
Author(s):  
Ezzeddine Touti ◽  
Hossem Zayed ◽  
Remus Pusca ◽  
Raphael Romary
Keyword(s):  
Renewable Energy ◽  
Energy Systems ◽  
Experimental Tests ◽  
Energy System ◽  
Induction Generator ◽  
Technical Solution ◽  
Hybrid Energy ◽  
Wind Speeds ◽  
Hybrid Renewable Energy System ◽  
Stability Enhancement

Renewable energy systems have been extensively developed and they are attractive to become widespread in the future because they can deliver energy at a competitive price and generally do not cause environmental pollution. However, stand-alone energy systems may not be practical for satisfying the electric load demands, especially in places having unsteady wind speeds with high unpredictability. Hybrid energy systems seem to be a more economically feasible alternative to satisfy the energy demands of several isolated clients worldwide. The combination of these systems makes it possible to guarantee the power stability, efficiency, and reliability. The aim of this paper is to present a comprehensive analysis and to propose a technical solution to integrate a self-excited induction generator in a low power multisource system. Therefore, to avoid the voltage collapsing and the machine demagnetization, the various parameters have to be identified. This procedure allows for the limitation of a safe operating area where the best stability of the machine can be obtained. Hence, the load variation interval is determined. An improvement of the induction generator stability will be analyzed. Simulation results will be validated through experimental tests.

Techno-Economic Evaluation of Stand-alone Hybrid Renewable Energy System for Remote Village Using HOMER-Pro Software

2017 ◽  
Vol 6 (2) ◽  
pp. 74 ◽  
Author(s):  
Ajoya Kumar Pradhan ◽  
Mahendra Kumar Mohanty ◽  
Sanjeeb Kumar Kar
Keyword(s):  
Renewable Energy ◽  
Wind Speed ◽  
Optimization Design ◽  
Unit Cost ◽  
Flow Analysis ◽  
Energy System ◽  
Hybrid Energy ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
Hybrid Renewable Energy

The off-grid hybrid renewable energy generation system has lesser cost of energy with higher reliability when compared with solar photovoltaic (PV) or wind energy system individually. The optimization design is worked out by reducing the unit cost of energy (UCOE) for different case studies and comparing the outcomes obtained by the use of HOMER-Pro (Hybrid Optimization Model of Electric Renewable) software. The optimal cash flow analysis of hybrid energy system is based on the load patterns is discussed, solar irradiance (kW/m2) of site at proper latitude and longitude, wind speed and price of diesel, which is collected from a remote village in Khurda District, Odisha in India. Moreover, the optimization and sensitivity results of the system are find out by varying the input parameters like solar radiation, wind speed etc.

scholarly journals A comparative approach between different optimize result in hybrid energy system using HOMER

2019 ◽  
Vol 9 (1) ◽  
pp. 141
Author(s):  
Shweta Goyal ◽  
Sachin Mishra ◽  
Anamika Bhatia
Keyword(s):  
Renewable Energy ◽  
Energy System ◽  
Physical Contact ◽  
Comparative Approach ◽  
Renewable Sources ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Hybrid Renewable Energy System ◽  
Reliability Issue ◽  
Hybrid Renewable Energy

<p>To compare the different result of optimization of a hybrid energy system. A hybrid renewable energy system (HRES) is the combination of renewable and non-renewable sources which is playing a very important role for rural area electrification when grid extension is not possible or excessively expensive. Non renewable sources like diesel power generator (optional) are used in a HRES for backup when renewable energy supply is not sufficient. While the HRES is very important due to the smallest natural and physical contact compared to non renewable sources, this work proposed a comparison outcome with the help of different component by using HOMER software and get best optimize result for the model. This paper presents a wide-ranging review of various aspects of HRES. This paper discusses study, best sizing, and model, organize aspect and reliability issue.</p>

scholarly journals Precise voltage control, power sharing for DC-bus with hybrid energy storage and (Neuro-Fuzzy) controller based MPPT for Hybrid Renewable Energy

2021 ◽  
Vol 4 (2) ◽  
pp. 64-76
Author(s):  
Fadhil Abbas Mahdi Al-Qrimli
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Wind Turbine ◽  
High Efficiency ◽  
Local Network ◽  
Hybrid Energy ◽  
Hybrid Energy Storage ◽  
Hybrid Renewable Energy System ◽  
Hybrid Renewable Energy ◽  
Super Capacitors

The main objective of this work is to design and simulation of the stand-alone Hybrid Renewable Energy system (HRES), separated from the main local network, the effect of super capacitors when connected to the system, and the effect of power source control system on the response and work of super capacitors. It consists of Photovoltaic, Wind turbine, Hybrid Energy Storage System (HESS). The HESS system consist of Batteries, Supper capacitors, with chargers. The proposed system used real record of weather pattern and load conditions for Al-Mahmoudiya Hospital. The variable sources are changing with different weather conditions. Being important energy sources for generating electricity directly from the sun. In order to generate electrical energy that is sustainable and reliable, highly efficient, low cost, and continuous. It can provide maximum power use. The absence of winds in most regions of Iraq permanently led to the use of such a type of renewable energy (RE) system called solar updraft tower (SUT). The wind turbine can be fixed inside the chimney of the SUT, to make the turbine run smoothly and continuously. Each of the HRES parts is controlled by a converter specific to each source due to the nature of the nonlinear source work. In this paper, the main sources of energy are photovoltaic panels and SUT. Finally, MATLAB program using real recorded data, the system work at a high efficiency of 98%. So the simulation results show the HRES system have excellent results and fast tracking to supply the load demand.

Optimum Design of Small-Scale Stand-Alone Hybrid Renewable Energy Systems

2017 ◽  
pp. 279-306
Author(s):  
Juan M. Lujano-Rojas ◽  
Rodolfo Dufo-López ◽  
José L. Bernal-Agustín ◽  
Gerardo J. Osório ◽  
João P.S. Catalão
Keyword(s):  
Renewable Energy ◽  
Optimum Design ◽  
Energy Systems ◽  
Small Scale ◽  
Renewable Energy Systems ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy

scholarly journals Stationary Hybrid Renewable Energy Systems for Railway Electrification: A Review

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5946
Author(s):  
Sergey V. Mitrofanov ◽  
Natalya G. Kiryanova ◽  
Anna M. Gorlova
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Systems ◽  
Energy System ◽  
Hydrogen Energy ◽  
Railway Transport ◽  
Renewable Energy Systems ◽  
Storage Devices ◽  
Hybrid Renewable Energy System ◽  
Hybrid Renewable Energy

This article provides an overview of modern technologies and implemented projects in the field of renewable energy systems for the electrification of railway transport. In the first part, the relevance of the use of renewable energy on the railways is discussed. Various types of power-generating systems in railway stations and platforms along the track, as well as in separate areas, are considered. The focus is on wind and solar energy conversion systems. The second part is devoted to the analysis of various types of energy storage devices used in projects for the electrification of railway transport since the energy storage system is one of the key elements in a hybrid renewable energy system. Systems with kinetic storage, electrochemical storage batteries, supercapacitors, hydrogen energy storage are considered. Particular attention is paid to technologies for accumulating and converting hydrogen into electrical energy, as well as hybrid systems that combine several types of storage devices with different ranges of charge/discharge rates. A comparative analysis of various hybrid electric power plant configurations, depending on the functions they perform in the electrification systems of railway transport, has been carried out.

Sign in / Sign up

Export Citation Format

Share Document